/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.openness.spider.fetcher;

import java.util.concurrent.TimeUnit;

import org.apache.http.impl.conn.PoolingClientConnectionManager;

public class IdleConnectionMonitorThread extends Thread {

	private final PoolingClientConnectionManager connMgr;

	private volatile boolean shutdown;

	public IdleConnectionMonitorThread(PoolingClientConnectionManager connMgr) {
		super("Connection Manager");

		this.connMgr = connMgr;
	}

	@Override
	public void run() {
		try {
			while (!shutdown) {
				synchronized (this) {
					wait(5000);

					// Close expired connections
					connMgr.closeExpiredConnections();

					// Optionally, close connections
					// that have been idle longer than 30 sec
					connMgr.closeIdleConnections(30, TimeUnit.SECONDS);
				}
			}
		} catch (InterruptedException ex) {
			// terminate
		}
	}

	public void shutdown() {
		shutdown = true;

		synchronized (this) {
			notifyAll();
		}
	}

}
